parker



J MQPARKER.

GageLath'e. r ,v No. 235,562; Patentegl Dec l tv, 1880.

3 Sheejss-Sheet 1.

FIG.I.

GMHIIIIL WITNESSES. INVENTOR.

MFETERS, FHOTO-LITHOGRAPHER. WASHINGTON o C I 8Sheets-Sheet 2.'

J. M. PARKER. Gage Lathe.

Pagented Dec. 14,1880.

N PHERS PHOTO Ll 3 Sheets-Sheet .3.

J. M. PARKER.

Gage Lathe.

No. 235,562. Patented Dec. 14,188'O..

FIE-3.4.

WITNESSES.

ENVENTUR.

MPETERS. FHOTO-LITHQGRAPHER, WASHINGTON, u c.

' 4 shows a transverse section on lineman.

UNITED STATES PATENT FFlCE.

JOHN M. PARKER, OF PAWTUGKET, RHODE ISLAND.

GAGE-LATH E.

SPECIFICATION forming part of Letters Patent No. 235,562, dated December 14, 1880.

Application filed June 4, 1879.

To all whom it may concern Be it known that I, JOHN M. PARKER, of Pawtucket, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Gage-Lathes; and I do hereby declare that the following specification, taken in connection with the accompanying three sheets of drawings, forming a part of the same, is a full, clear, and exact description thereof.

My invention relates to a machine for automatically making spools and similar articles from squared sticks of a proper length; and myimprovements consist, first, in providing the machine with a rack for holding in a stack the sticks from which the spools are to he made and an automatic device for delivering said sticks one at atime to feeding mechanism; sec- 0nd, in the employment of feedingrolls which operate upon the sticks by a yielding pressure to advance them to the rougher, and gripingjaws which advance the rounded sticks from the rougher to stationary clamping-jaws, the movements of said rolls and griping-jaws being intermittent, simultaneous, and equal in amount; third, in providing the delivery end of the rougher-spindle with a removable bushin g having a conical mouth, for centrally deliverin g the rounded sticks to the feedin g-jaws; fourth, in the mechanism for operating the feeding and clamping jaws; fifth, in the employment of peculiarly-movin g fingers to transfer the spool-blanks to the head dressing and shaping tools sixth, in the construction of the non-rotating head-dressing spindle and its accompanying parts; and, seventh, inthe device for removing the finished spools from the live'spindle.

The objects of my improvements are to produce a more perfectly working machine, and to reduce to a minimum the attention necessary to a spool-machine for making finished spools from squared sticks of a properlength.

Referring to the drawings, Figure 1 represents a top view or plan of a machine embodying my improvements. Fig. 2 shows a side elevation of the same. Fig. 3 represents a bottom view of a portion of the machine. Fig. Fig.

5 represents the construction of the gripingjaws and accompanying mechanism, which feed the rounded sticks, the said view showing a partial section of the machine on line yy. Fig. 6 represents the construction of the stationary clamping-jaws and accompanying mechanism in a sectional View on line z 2. Fig. 7 shows a detail view of the headdressing spindles and accompanying parts, and Fig. 8 represents a side view of the arm attached to one of the spindles.

As shown in the drawings, A denotes the frame of the machine, in and upon which the various parts are mounted.

B is the driving-shaft, which imparts rotation to the cam-shaft 0 through the pinion b and gear 0. To the frame Ais secured a rack, D, which is composed of a base-piece and inclined bars, as shown in Figs. 1 and 2. The oftice of this rack is to support the stack of sticks from which the spools are to be made, the said sticks beingot' a length sufficicnt to project outwardly beyond the end of the rack, and having a cross-section,preferably in the form of a square, which is of a size requisite to produce spools of the desired diameter.

Located in the frame A is asliding bar, B, Fig. 2, which is provided with an upwardlyprojecting stud, I), and is connected at one end with a vertical arm, B which has a fulcrum in a bracket attached to the frame of the machine. This arm is connected by means of a link, I)", to the downwardly-projecting end of a rod, d, which slides in two of the inclined arms of the rack D, and has its outer end bent upward to engage the ends of the sticks. This rod dis provided-with a collar, 01, and a retracting-spring, 61 which bears against the collar and one of the arms of the rack. For causing an outward movement of the rod d, in order that the outer end of thelowermost stick may pass the end of the rod and said stick fall into such a position in the rack that its outer end shall be engaged by the upwardlybent end of said rod, the shaft 0 is supplied with a cam, E, which, while revolving, en-

gages the stud b, retreats the rod B, and,

through the arm B and link b causes an outward movement of the rod 01 against theforce of the spring d This movement of the rod 01 allows the lowermost stick in. the stack to assume a position to be moved to the gripe of the intermittentiy-rcvolving feedingrolls by the force of the spring d when the contour of the cam E allows.

As shown in Figs. 1 and 2, the feeding-rolls F F are mounted in a standard, F secured to the frame of the machine, and each has its circumference channeled by a peripherical V- groove. The upper rolls,'F, are mounted in sliding blocks f, and are pressed upon the sticks during the movement of said sticks between the rolls by springs f.

The rolls F F are intermittently revolved for the purpose of feeding the sticks in the iollowingmanner: A sliding plate, G,is mounted in the frame A, and from it depend two studs, 0 c, which are engaged by the cam E. Pivoted to the plate G is a rod, G, which is connected with an arm, G bearing a pawl, g. This pawl engages a ratchet, g, which is secured to a gear, g and this gear meshes with a pinion, 1 secured to the shaft of one of the rolls F, and it may mesh also with a pinion secured to the shaft of the fellow roll F, if desired. One complete revolution of the cam E causes the plate G to advance and retreat, the geared feeding-rolls to be partially revolved, and the sticks to be moved forward just the length of a spool-blank, the un geared feedin rolls rotating by frictional contact with the sticks. As the length of different sizes of spools varies, however, it is necessary that some means be employed for regulating the amount of movement of the plate G, and consequently of the feeding-rolls. This is accomplished by making the stud 6 adjustable on the plate G. This stud occupies a slot in the plate G, as shown in Fig.3, and is supplied with a shoulder and a clamping-nut, 6 so that the position of said stud on the plate Gcan be so regulated that the cam E will advance said plate, rotate the feeding-rolls, and move the sticks just the required amountthat is, equal to the desired length of the spool-blank.

The sticks are advanced by the feed-rolls F F" to what is known as the "rougher, which reduces the sticks to a cylindrical form. This rougher consists of a hollow spindle H, to which is secured a head, h, which carries a cutting-tool. The diameter of the hole in the spindle H is greater than that of the rounded sticks, in order to avoid friction; but the diameter of the hole in any head, h, which may be applied to the spindle is the same as that of the rounded stick, the said hole guiding and supporting the stick while being roughed.

Located in the delivery end of the spindle H is a bushing, h, preferably screwed into said spindle, although it may be secured to the spindle in any other manner. The object of this bushing is to deliver the stick centrally from the spindle, and for this purpose it is provided with a hole of the diameter of the stick, which hole terminates on the inner end of the bushing in a conical mouth, as shown at Fi 2, which mouth ispresented to the advancing sticks and secures their entrance into the delivery-hole, and consequently the central delivery of the sticks from the rougher-spindle.

, For seizing the sticks and properly conveying them beyond the bushing h to be cut into blanks and further operated upon, the machine is provided with a pair of griping-jaws, I I, which are mounted in a standard, J, secured to the sliding plate G. The said standard and jaws therefore move ,with the plate G, the said movement being simultaneous with and equal in amount to that of the feed-rolls F F. The mechanism by which thejaws I I are made to perform their office is shown in Figs. 2, 3, and 5.

Referring to Fig. 5, it will be seen that thejaws occupy slots in the standard J and are supplied with pins t, which occupy slots in one end of a pair of arms, 2', which arms are pivoted to the standard J and are controlled hy a spring. 45*. Journaled in the standard J is a vertical rod,j, which bears upon its lower end a disk,j, having a partiallyinclined face, which is engaged by a fellow disk, j having a similar face and provided with an arnnj. The rod j also bears an adjustable plated, having inclined sides, which are engaged by the bent ends of the arms t by the force of the spring t Located on the under side of the frame of the machine, and sliding therein, is a bar, K, which is connected to a rod, K, which rod has a depending stud, 7:, working in the groove of a cam, K Fig. 2, which cam imparts a backward-and-forward movement to said bar. Projecting from the upper surface of. the bar are two pins, 76, between which the outer end of the arm 9' is located, so that when the bar K is advanced this arm is engaged by one of the pins and the diskj is partially rotated. This causes the rod j to be depressed and the plate 7' to separate the lower ends of the arms i, which action advances the jaws- I I toward each other to gripe the stick. So soon as the stick is griped the standard J and jaws I I move forward by the action of the cam E and advance the stick to be clamped upon the standard Lby the jaw L. The mechanism by whichthisclampingis effected is shown in Figs 2, 3, and 6. N

Referring to Fig. 6, it will be seen that the, jaw L is mounted to slide vertically in the standard L, and that said jaw is provided with a tail-rod, l, which bears upon its lower end a disk, I, having a partially-iiielined face. Between "the disk and the foot of the standard L isarranged a fellow diskpl, provided with an arm, lithe said disks being held in engagement by a spring, l whose force tends to raise the jaw L.

Located on the under side of the frame of the machine, as shown in Figs. 3 and 6, is a sliding bar, M, which is supplied with a pin, m, which pin enters the forked end of the arm P. The bar M is also supplied with a headed pin, m, which enters the forked end of an arm, M, which arm is provided with a depending stud, m and is pivoted to the frame A..

As shown in Figs. 2 and 5, the shaft 0 is supplied with a disk, N, which is provided with oppositely inclined teeth a a. 'When the stick has'been fully advanced "by the jaws I I the tooth a engages the stud m and slides the'rod M, which action, through the arm 1 partially rotates the disk L and causes the jaw L to clamp the stick to the head of the standard L. ,Thejaws I I now loose their gripe and are retreated again to engage the stick. The continuously-revolvin g drill K is advanced during the retreat of thejaws I I by the action of the cam K on the rod K, an d a hole is bored in the stick. The d rill then retreats, and the continuously-revolving saw O,which 1s journaled in a forked arm, 0, Figs. 1 and 4, is advanced by a cam, 0 on the shaft 0, and aspool-blank is severed from the stick, after which the saw retreats to its rearward position. The next operation is the transfer of the spool-blank to the enddressing spindles, where the blank is finished into a complete spool. This transfer is effected by peculiarlyo 'yerating fingers, as will now be described.

As shown in Fig. 5; the side of the disk N is is provided with a can1-groo ve,'*N, which is engaged by aroller upon the short arm of a bellcrank lever, P,pivoted to the frame of the machine. .As shownin Figs. land 4, the long arm of this lever carries the fin gers p 12, the finger 19 being attached to a sleeve which is journaled in the end of the lever P. The finger p is adjustably mounted on a sliding spindle,p ,which is journaled in the sleeve of its fellow arm 19,

and projects rearward beyond said sleeve. This sleeve is provided with a crank-arm, 11 which is slotted and engaged by the bent end of an. arnnjfi: This arm is journaled in the frame of the machine, as shown in Fig. 2, and has its lower end secured to two springs, 19 which extend toward the sides of the machine and are attached to the frame, as shown in Figs. 4. and 5. A pin,-p,is secured to the finger p and passes through the finger p. This pin has its free end threaded and supplied with a nut, a'nda spring, p bears against said nut aid finger and tends to close the fingers upon ach other.-

Pivoted to the standard P on the frame A is a bar, I; which has a tloublyinclined end, p

11 and is provided with two adjusting-screws, p 12 which limit the amount of the swinging motion of said bar by coming in contact witlr the standard P, as shown in Fig.1; or the standard may be supplied with adjustiu screws toengage the bar P if preferred.

During the advancement of the saw Oto sever a spool-blank from the end of the stick the bar P occupies a position as shown in dotted lines in Fig. l and the fingers pp a position'a little in the rear of that sh wn in dotted lines at Fig. 1, the, end of the *pindle p engaging the incline p on the bar P As i the saw retreats the fin gers'ad vance by the action of the cam L and are separated more and more as the spindle 13 rises the incline 10 so that when the end of said spindle bears on the .end of thebar P 'thefingers will be separated, a distance slightly greater thanthe length of the spool-blank, and will overlie the ends of said blank. The further action of the cam N causes the fingers to advance still farther upon the blank and the end of the spindle p to pass down the incline 12 when the spring 11 closes the fingers on the ends of the blank and causes them to gripe it. When the blank is fully griped by the fingers p p the tooth n on the disk N slides the rod M, which raises the jaw L and releases the blank from the gripe of said jaw and the head of the standard L. The blank may now be transferred by the fingers to the end-dressin g spindles Q Q. This transfer is accomplished by the action of the cam I upon the lever P,which moves the fingers toward "the spindles Q Q", and by the action of the arm 19 upon the crank-arm 19 attached to the sleeve of the finger p, which action causes the fingers to revolve in the are of a circle about the end of the long arm' of the lever P. This brings theiingers into a position shown in full lines in Figs. 1 and 4 and carries the axis of the blank into alignment with the axes of the spindles Q Q, as shown in Fig. 1. During this transfer of the blank the bar 1? is moved from the position shown by dotted lines in Fig. lto the position shown by full lines in said figure by the contact of said bar with the spindle 12 This movement of the bar is necessary in order that the gripe ot' the fingers upon a blank of proper length may not. be released, which would be the case it the bar remained in the position first described. too short ablank is held in the fingers, for in such case the spindle 1)2 will unduly project toward the bar P will enga e the incline as the fingers approach the dressing-spindles, and will cause said fingers to separate and the short blank to be released. When the fingers return to seize a new blank the bar. P is also returned by the engagement with the spindle p to the position in which it was first described.

The spindle Q is a live-spindle, which is provided with a spur, Q,'Figs. l and T, and is con tinuously revolved. A bracket, Q",is secured to the standard in which said spindle is mounted, and a cutter, q, is placed in its head for dressing one end of the spool-blank. The spindle Q does not revolve, but has a longitudinal movement imparted to it by the cam K Fig. 2, through an arm, 9 Figs. 2., 4, and 7. One end of this arm engages adepending stud upon a sliding rod, Q Figs. 4: and 7,

which rod is attached to an arm, Q pivoted to the frame, of the machine, and having a forked end which embraces an adjustable collar on the end of the spindle Q. The'other end of this spindle is provided with a head, g which holds a tool, If, for dressing the other end of the blank, and the axis of this head is occupied by a pin, (1 which, when the spindle Q is moved forward, enters the hole in the spool-blankand furnishes a bearing upon which said blank may revolve.

When the axis of the blank is brought into It is also useful when IIO coincidence with the axes of the spindles Q Q, as above described, a forward movement is given to the spindle Q to force the blank upon spur q and cause said blank to rotate with the spindle Q. In order, however, that the dressing-tool g shall not engage the end of the blank before said blank is sufficiently engaged by the spur q, and thereby prevent the blank from properly rotating and its ends from being dressed, the spindle Qfis provided with the following mechanism, which prevents the tool (1 from acting on the end ofthe blank until said blank is sufficiently engaged by the spur q to insure rotation.

As shown in Fig. 7 the spindle-head g is provided with a slot, which is occupied by the bent end r of an arm, B. This end r of the arm is supplied with a slot, through which a pin, 1, passes, the said pin serving as a guide for the end of the arm and acting to retain it in place. Near its other end the arm It is provided with an inclined face, r which, by the force of a spring, 8, engages a stationary post, S, secured to the rod S. Beyond the inclined face 1" the arm is provided with an oppositely-inclined face, W, at the end of which is a vertical shoulder, 4", which is engaged by a pin, t, passing through the forked arm t of an adjustable collar, T, secured to the spindle Q. When the spindle Q, is in a rearward position, and during a portion of its forward movement, the pin t is in engagement with the shoulder 1 and the end 1' of the arm projects beyond the face of the head g and also beyond the edge of the tool When, therefore, the spindle Q is moved forward the end 1" of the arm R comes in contact with the end of the spool-blank and forces said blank upon the spur q; but when the said blank has been sufficiently engaged by the spur to insure the rotation of the blank the post S, by its action on the inclined face 1, will raise the rear end of the arm so that the shoulder T will no longer be engaged by the pin it, which will now pass along the inclined face T The bar 1" therefore will remain stationary and allow the spindle to advance and the tools (1 and g to dress the ends of the blank, the fingers p p retreating so soon as the blank is engaged by the spur q and pin (1 to allow the dressing to be performed.

The spur q and the pin g enter opposite ends of the hole in the blank, and will not come in contact during the dressing operation upon the blank of an average length; but when thin spools are being made such contact will take place and prevent the ends of the blanks from being dressed, unless the pin g is arranged to retreat in case it meets the spur. For this purpose, as shown in Fig. 7, the pin g is provided with a collar and surrounded by a spring, g, which bears against said collar and the end of the spindle and keeps the. pin fully projected beyond the head q, but allows said pin to retreat in case of contact with the spur q.

While the ends of the blank are being dressed the body is formed into the desired shape by a tool, U, Figs. 1 and 4, secured to one end of an arm, U, which is pivoted to the frame A and moved forward and retreated by the action of an eccentric, U Fig. 2, upon a rod '11.

The spool is now complete, and it only remains to remove it, which is accomplished as follows: Arod, V, Fig. 7, is journaled in the standard of the spindle Q, and has its end it bent upward. When in its normal position this end stands under the projecting head of the bracket Q and therefore beyond the end of the spool, where it is held by the action of the spring V upon a collar, 4:, attached to said rod. The outer end of the rod is notched to produce a shoulder, c and when the spindle Q, has been fully advanced this shoulder is engaged by a latch, V which is pivoted to the arm Q and moves therewith. When, therefore, the spindle Q retreats the rod V moves with it and removes the finished spool from the spur q.

The latch V is supplied with a projecting pin, 0 which engages an inclined arm, V as the latch moves backward, raises said latch, and releases the rod V, which is returned to its original position by the spring V.

The rod R is returned to its original position during the retreat of the spindle Q by the spring 8, which, when the said spindle has moved sufficiently rearward and the pin t has moved up the inclined face r forces the rear end of the arm 1t downward and causes the said pin to engage the shoulder r From the foregoing description it will be understood that all that is necessary to continuously turn out finished spools from a machine organized as above described is for the rack to be supplied with sticks of a proper length, (and said sticks may simply be sawed from boards of the proper thickness,) and this can be done by a lad, who may attend to ten or more machines at a time, thus materially reducing the cost of manufacturing spools.

Although I have shown my improvements as embodied in a machine of definite construction, yet I am aware that said improvements, separately considered, may be applied to machines dilferently constructed. This is particularly the case with the rack for holding the stack of sticks and the automatic feed for deliverin g said sticks to the feeding mechanism of the machine, which improvements are applicable to any machine employing a rougherspindle and mechanism-either rolls or jawsfor delivering the sticks directly to said spindle.

Although I have described and shown a definite construction and arrangement of the transferring-fingers p p, and have employed the bar P yet, if it is not desired that too short a blank shall be released by said fingers, the

' bar 1? may be dispensed with. Spring-fingers may also be employed, which are both secured to a sleeve (adj ustably or permanently) mounted in the end of the lever P, and having a crank-arm, 19 which en gages the arm 19. Such spring-fingers, therefore, would have the same backward, forward, and rotary motions as are given to the fingers p 10, and would perform their office, whether they griped the blanks longitudinally or diametrically. In case they griped the blanks diametrically, however, the jaws L L would be slotted to admit the entrance of the fingers to properly seize the blanks.

Having described my invention, what 1 claim, and desire to secure by Letters Patent, 1s

1. The combination, with a gage-lathe, of the stationary rack D, for holding the sticks in a stack, the bent spring-rod d, the arm B connectedwith said rod, the sliding bar B, and a cam to operate the same, substantially as and for the purpose set forth.

2. The combination, with the rougher-spindle H, of the sliding plate G, the jaws I I, mounted on said plate and moving therewith, the feed-rolls F F, the latter rolls mounted as described, the gears g 9 ratchet g, pawl g, and arm G connected with the plate G, whereby the sticks are delivered to and removed from the i'ougherspindle, substantially as set forth.

3. The combination, with the jaws L L, the jaws I I, the feed-rolls F F, and mechanism, substantially as described, through which an intermittent revolution is imparted to said rolls, of a plate, G, provided with studs 6 e, the former stud adjustable on said plate, whereby the amount of movement of thejaws I I to and from the jaws L L and the rotation of the feed-rolls can be regulated, substantially as set forth.

4. The combination, with the rougher-spindle H, of a bushing, h, located in an end of said spindle and having a conical mouth, substantially as and for the purposes specified.

5. The combination, with thejawsl I, mounted to slidein the standard J, and provided with pins i t, of the slotted arms '5 #3, spring *3, rod j, provided with the plate j and disk 9', and the disk j", provided with the arm j whereby the said jaws may be made to gripe and release the sticks, substantially as set forth.

6. The combination, with the jaws L L, the latter provided with the tail-rod Z and disk 1, of the spring Z and disk l provided with an arm, Z whereby the jaw L may be made to clamp the sticks on the jaw L and to release the blanks, substantially as set forth.

7. The combinatiomwith blank holding or clamping jaws and the dressing spindles Q Q, of spring-fingers, spindle p lever P, cam-disk N, crank-arm p spring-arm p and bar P whereby intermittent forward, backward, and partially rotary motions are imparted to said fingers for removing the blanks from said jaws and delivering them to said spindles, substantially as specified.

8. The combination, with the adjustable fingers 19 p, the latter provided with the spindle p and spring 19 said fingers having motions as described, of the swinging bar P whereby the fingers may be separated for the purpose of seizing and releasing the blanks, substantially as set forth.

9. The combination, with fingers, substantially as described, for seizing the blanks while they are held by the clamping-jaws, one ot'said fingers being provided with a crank-arm, p of a can], N, lever P, upon which the lingers are rotatively mounted, and arm 19*, whereby the fingers-are made to remove the blanks.

from the clamping-jaws and deliver them to thedressing-spindles, substantially as setforth.

10. The combination, with thelongitudinallymovable spindle Q, of the arm R, having incline r and shoulder T the collar T, post S, and spring 8, substantially as and for the purpose specified.

ll. The combination, with the spindle Q, provided with a spur, q, the vibrating arm Q provided with a latch, V and the inclined bar V of the bent and shouldered rod V, provided with a spring, V, substantially as and for the purpose specified.

12. in an automatic gage-lathe, the combination of a driving-shaft, a rack to contain sticks to be worked up, a device operated from said shaft to automatically feed a stick from said rack into the machine, feed-rolls to advance such sticks, a hollow revolving turning-tool to take the sticks from the feed-rolls and roughdress them, a boring-tool, a blank-severing tool, automatic fingers for transferring the severed blanks from such tools, and automatically-operated tools and lathe centers or spindles for finishing the blanks into merchantable articles, substantially as described.

JOHN MEDARS PARKER.

Witnesses:

EnsoN SALISBURY J ONES, WM. A. CADY. 

